NegLLBetaBin: Negative Log Likelihood value of Beta-Binomial Distribution

In fitODBOD: Modeling Over Dispersed Binomial Outcome Data Using BMD and ABD

Negative Log Likelihood value of Beta-Binomial Distribution

Description

This function will calculate the Negative Log Likelihood value when the vector of binomial random variables and vector of corresponding frequencies are given with the shape parameters a and b.

Usage

NegLLBetaBin(x,freq,a,b)

Arguments

x	vector of binomial random variables.
freq	vector of frequencies.
a	single value for shape parameter alpha representing as a.
b	single value for shape parameter beta representing as b.

Details

0 < a,b

freq \ge 0

x = 0,1,2,...

NOTE : If input parameters are not in given domain conditions necessary error messages will be provided to go further.

Value

The output of NegLLBetaBin will produce a single numeric value.

References

\insertRef

young2008poolingfitODBOD \insertReftrenkler1996continuousfitODBOD \insertRefhughes1993usingfitODBOD

Examples

No.D.D <- 0:7       #assigning the random variables
Obs.fre.1 <- c(47,54,43,40,40,41,39,95)   #assigning the corresponding frequencies

NegLLBetaBin(No.D.D,Obs.fre.1,.3,.4)   #acquiring the negative log likelihood value

fitODBOD documentation built on Oct. 10, 2024, 5:07 p.m.